My current T is the most consistent T I have ever seen. She is consistent in every manner - her demeanor from week to week, the timeslot she gives me, the amount of notice she gives for absences, her responses and reactions to me, and I am sure there are many other ways she is consistent as well.
As a person who has experienced chronic and severe developmental trauma, her consistency allows me a sense of safety with her that I have not experienced before. I would say consistency is her "superpower". I believe she deliberately cultivates it and I am grateful for it.